Toon Boom Harmony 15 ((better)) Here

Many veteran animators skipped versions 16–18 and stuck with because:

Harmony 15 introduced several features that redefined the software's utility: toon boom harmony 15

Toon Boom Harmony 15 is a definitive entry in the history of digital animation. By successfully integrating bitmap drawing tools into a vector-dominant environment, it attracted traditional animators who previously found the software too rigid. Its introduction of the Master Controller set the standard for modern 2D rigging workflows. Many veteran animators skipped versions 16–18 and stuck

: The introduction of the GL cache lock node and focused caching significantly boosted software performance, especially when working with heavy scenes. : The introduction of the GL cache lock

A notable technical undercurrent of Harmony 15 was the groundwork laid for GPU acceleration. While not as aggressively marketed as in later versions (Harmony 17+), Harmony 15 introduced 2D GPU particle effects and improved compositing speeds, allowing for faster previews of complex scenes.

: Improvements to the brush and pencil tools allow for better texture and pressure sensitivity.

The software includes a node-based compositing environment. Harmony 15 expanded the library of effects, particularly in the handling of particles and glows, allowing 2D animators to achieve high-end visual effects (VFX) natively without exporting to external software like After Effects.